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Green circuit board with black memory chips and gold edge connector

SAMSUNG

SAMSUNG M393A1G40DB0-CPB 8GB DDR4 2133 ECC Registered Server RAM

SKU CH-91AT-FCJK4 MPN M393A1G40DB0-CPB

8GB DDR4 2133 ECC registered DIMM with CL15 latency and 1.2V operation for server stability

  • Total capacity8 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • ECC protection prevents data corruption with registered buffering
  • 2133 MHz speed delivers 17000 MB/s bandwidth for server workloads
  • CL15 latency reduces access delay for responsive performance
  • 20V operation lowers power draw in dense configurations
  • 288-pin DDR4 form factor fits standard server DIMM slots

Server memory module for ECC workloads

This 8 GB DDR4 module runs at 2133 MT/s with CL15 latency and 1.20 V operation. It is built as a registered single-rank DIMM for servers and workstations that require error-correcting code memory.

Verify registered DIMM support and voltage

Check that your motherboard accepts registered DDR4 DIMMs and operates at 1.20 V before ordering. Systems limited to unbuffered memory or a different voltage will not work with this module.

No heat spreader included

The bare circuit board design means airflow from your server chassis must cool the chips directly. Builders needing integrated thermal protection should choose a module with a spreader.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $74.99
Cheaper than about 77% of the 6,523 comparable items (median $188.99).
Total capacity 8 GB
Lower than about 80% of the 6,064 comparable items (median 32 GB).
Price per GB $9.37 per GB
Pricier than about 64% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameSAMSUNG
Model nameM393A1G40DB0-CPB
Total capacity8 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Size & build
Shipping weight0.05 kg
Package size147 × 48 × 15 mm

Questions about this item

What comes in the box and do I need any extra brackets or cables for the 288-pin DDR4 DIMM?

The module ships alone in anti-static packaging; no brackets, cables or heat spreader are included or required for standard server DIMM slots.

Should I pick the 8 GB 1Rx4 CL15 stick or look for a different capacity or rank for my server?

This single-rank 1Rx4 8 GB stick at CL15 is the only capacity and rank offered under this part number; match it to your platform's qualified vendor list.

What does the 2133 MT/s PC4-17000 rating deliver once the registered ECC module is installed?

The module runs at 2133 MT/s with 1.20 V and CL15 latency, providing registered ECC error correction for compatible DDR4 server platforms.

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